Gpio Overview - MediaMatrix CAB 8n Hardware Manual

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GPIO overview

NION and CAB products include a versatile GPIO (General Purpose Input Output) system at
the rear for terminating external logic, controls, relays and other external systems. Each
control pin is supported by NWare for configuration, control and monitoring. Any
combination of control pins may be used simultaneously, regardless of the configuration.
Caution: The pin assignments for the GPIO ports on the NION and CAB devices are not the
same. Please be sure to check the documentation carefully when connecting devices to the
ports.
Configurable general purpose ports (8 control pins)
These ports can be configured as follows:
Digital output
High current digital
output
Digital input
Analog input
Contact closure circuits
Two user-controllable contact-closure circuits. Max voltage 30V DC, max current 1A.
One fault indicator contact closure circuit. Max voltage 30V DC, max current 1A.
High current power output
Voltage is as supplied by external DC power (Ext Pwr connector). Absolute max. current draw
0.5A per I/O. Total limited by external PSU.
Not available if using PoE.
A ground pin is available on the left of the connector block if required.
Caution: If the Ext Pwr connector is used, the voltage available via the DC supply output
connector (marked DC Out) will be the same as the voltage supplied via the Ext Pwr
connector. Equipment connected to the DC Out connector must be compatible with the
supplied voltage.
Note: The DC Out connector cannot be used when the CAB 8n is powered using PoE.
July 23, 2014
2.5V high level (LVTTL) short circuit current 1.4mA.
Voltage is as supplied by external DC power (Ext Pwr connector).
Absolute max. current draw 0.5A per I/O. Total limited by external
PSU.
Not available if using PoE.
2.5V high level (LVTTL) with reverse voltage and transient protection.
10-bit resolution, 12V full-scale, reverse voltage and transient
protection.
Version 1.7.1.0
CAB 8n Hardware Manual
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